BBA x1900 crossfire ....wich kind of memory on it? (1,2ns or 1,1ns)

[giorgioprimo]

Hi to everybody.
We are making some test with x1900xtx + x1900 crossfire. We have a little problem with the crossfire card (even in single configuration) we cannot push the memory over 780 MHz without artifact (no problem to go over 800 with the 1900xtx card) .
Both cards are BBA, so we are guessing if anybody knows which kind of memory are used in the crossfire card ?
We think that they are 1,2ns memory, but we saw some test on XS from people that had no problem to pass 800... Anybody knows if there are card which use 1,1ns memory and some others that use 1,2ns?

Thanks

[Blacklash]

http://www.xtremesystems.org/forums/showthread.php?t=87890

BJ11 is on the end of ram's number if it is the 1.1ns. It is possible some Crossfire edition master cards carry it and I doubt it.

[Dynasty]

Anybody knows if there are card which use 1,1ns memory and some others that use 1,2ns?


The first X 1900 CF card I had here also was using BJ-12's (1.25ns)
on PCB revison # 109-A72131-20.
Now, I wonder if the newer revision might have BJ-11's,
this was rumored. :cool:

[G H Z]

How did your's clock Dynasty?

[Dynasty]

How did your's clock Dynasty?

This was done on the X 1900 CF card using cards stock cooler
on RDX-200 CF-DR which I find to be slower then my eXpert/sli-dr boards for single card.
Only reason I am on RDX is to prep. for Xfire usage.

It needed 1.30 Vgpu for 700 core clks on air.

2.050 for vddc & vddq for 814 no problems.

http://img451.imageshack.us/img451/3712/0512245x1900single0ct.jpg (http://imageshack.us)

[C3]

Any news? All X1900 Crossfire cards just have 1.2ns ram?

[nicepun]

Any news? All X1900 Crossfire cards just have 1.2ns ram?


I'm in the process of acquiring a x1900 Crossfire myself and I'm wondering the same thing. Thanks.

[Marioace]

i had a X1900XT CF BBA 1.2ns

@Dynasty: the result of the 3DM05 is yours? i get 12154 with the cards at default and my CPU at 2.5ghz

http://img387.imageshack.us/img387/4563/3dm05cfoc5py.th.jpg (http://img387.imageshack.us/my.php?image=3dm05cfoc5py.jpg)

[G H Z]

Viper John said he has two master cards, and both have 1.1ns IC's.

[ahmad]

Viper John said he has two master cards, and both have 1.1ns IC's.

Date and location and brand?

[Dynasty]

i had a X1900XT CF BBA 1.2ns

@Dynasty: the result of the 3DM05 is yours? i get 12154 with the cards at default and my CPU at 2.5ghz

http://img387.imageshack.us/img387/4563/3dm05cfoc5py.th.jpg (http://img387.imageshack.us/my.php?image=3dm05cfoc5py.jpg)

That score was in trouble the minute I put the X1900 CF card on
RDX-200 CF-DR.
Same card, same clks scored alot higher on my
eXpert NF4 chipset board.

Im waiting on an RD-580 board. :)

[OBR]

I have Sapphire X1900XT with 1.2ns memory, and i am able to overclock them 840Mhz@2.2V without artefacts.

[Tyrou]

mine is a 1.2ns too, it clocks to 820MHz with stock volts, almost as high as my XTX